Solar panels require minimal maintenance once in place, with the exception of cleaning. Large solar panel manufacturers tend to offer twenty to twenty-five year warranties on their products (Maehlum). This means that companies know that their product will last a very long time and investors will not have to deal with the units malfunctioning or breaking down. Solar energy is also sustainable in that its use will not fail generations to come. It is impossible to consume too much solar energy, as is the case with fossil fuels (Maehlum). This is a problem with fossil fuels, because they are not renewable. It is important to rely as little as possible on fossil fuels so that future generations are not left with diminishing energy sources. An energy source that can be relied upon for generations means stability. Stability is essential when looking to the future. A stable energy source is the key to a stable society. Without a stable energy source, there can be no stability in society. There would be no way to stay warm and no source of energy. By implementing renewable energies on a larger scale and becoming less dependent on fossil fuels, humanity is securing part of its future. Solar energy helps protect future generations from the worries of an energy crisis by being a source of energy that can be relied upon for many years to come.